AWS Cloud Architect

11/2021 – 1/2022

Engineering – DevOps / Cloud – System for event ticket booking
Role:
- Setup of AWS Account Organization using a multi account strategy
- Setup of AWS Infrastructure using CDK - ECS / RDS / SES
- Setup of CI/CD Pipelines and E2E Tests
Technologies: RDS, EKS; ECS, SES, CDK, Gitlab-CI, Quarkus

Amazon Web Services (AWS)

4/2020 – 2/2022

Engineering - DevOps / Backend – System for travelers’ disposition for DB Fernverkehr
Role:
- Designing and implementing complex requirements in a distributed microservice environment. (Backend)
- Building new and enhancing existing CI/CD pipelines and deployment processes for easier and more reliable delivery.
- Enhancing the systems architecture and monitoring to achieve high availability and fault tolerance for the applications running on Kubernetes and AWS.
- Performance optimizations by building automated load tests and improving horizontal scaling in message and REST based systems
Technologies: Java, Spring Boot, PostgreSQL, Amazon MQ, CloudFormation, Gitlab-CI, OpenShift


Engineering - DevOps / Backend – Realtime event-bus for long distance train operations in DB Fernverkehr

Role:
- Improving the availability and resilience of the application
- Building a message broker mesh for horizontal scaling
- Load testing and performance optimizations in the event-based system
- Delivery of the application to multiple customers
- Monitoring and alerting setup for on call rotations
Technologies: Java, Spring Boot, TypeScript, Node.js, AWS Lambda, RDS, PostgreSQL, Amazon MQ, CloudFormation, JMeter, Gitlab-CI, OpenShift, Amazon Connect

Engineering - DevOps / Backend – Development of a serverless E2E monitoring stack based on AWS Lambda
Role: Design of HA architecture, Development of the solution
Technologies: Java, AWS Lambda, CloudWatch, DynamoDB, CloudFormation

Amazon Web Services (AWS), Kubernetes

10/2016 – 3/2020

Engineering - Full Stack – New web application for the Euro area bank lending survey of German financial institutions
Role: Design, Architecture, Data modelling, Setup of project and APIs
Technologies: Java EE, Microprofile, Maven, JAX-RS, JSON-B, Angular, TypeScript, npm, OpenAPI, Swagger, Jenkins, WebSphere Liberty, IntelliJ, SQL, JUnit, Arquillian, Enterprise Architect, JIRA


PM / Lead Engineer – Migration of all web applications in the banking statistics department to a new tech stack and platform
Role: Project Management, Migration of the pilot application
Technologies: Linux, Maven, Jenkins, CI, Java EE 8, Hibernate, WebSphere Liberty, JIRA


Engineering - Full Stack – Developing a web application with very high integrity and availability requirements for the delivery of money market data for the new Euro reference rate “€STR”
Role: Design of HA and High Integrity Architecture, Data modeling, Requirement Engineering
Technologies: Java EE, Maven, JAX-RS, Hibernate, JSF, PrimeFaces, Jenkins, CMS Encryption, JMS, WebSphere Liberty, IntelliJ, SQL, DB2, Enterprise Architect

Engineering - Full Stack - Developing a web application for the delivery of money market data based on the guideline of Money Market Statistical Reporting (MMSR) Regulation
Role:
- Connecting the application to new OLAP systems
- Implemented a module for automatic recognition of non-compliant reporting activity
- Implemented a messaging module for communication with reporting agents
Technologies: Java EE, Maven, JAX-WS, Hibernate, JSF, Jenkins, WebSphere Application Server, Eclipse, DB2, XML, XSD, SQL, SQL Server

Java (allg.), Angular